Object Storage Service

An encrypted and secure cloud storage service which stores, processes and accesses massive amounts of data from anywhere in the world

Alibaba Cloud Object Storage Service (OSS) is an encrypted, secure, cost-effective, and easy-to-use object storage service that enables you to store, back up, and archive large amounts of data in the cloud, with a guaranteed reliability of 99.999999999%. RESTful APIs allow storage and access to OSS anywhere on the Internet. You can elastically scale the capacity and processing capability, and choose from a variety of storage types to optimize the storage cost.


Ease of use
Simple use and easy management
Integrated with comprehensive extract, transform, and load (ETL) services
High reliability
Multiple backups for data redundancy
Minimum guaranteed service availability of 99.9%
Powerful security measures
Multiple access control measures and fine-grained authorization
Data encryption and anti-leech protection for servers and clients
Lower Total Cost of Ownership (TCO)
Cross-region replication and remote disaster recovery


  • OSS supports various types of storage


    High-performance, highly reliable and highly available OSS instances
    Features: Applicable to service scenarios characterized by high throughputs, hot files, and frequent access
    Persistence: 99.999999999%
    Minimum storage period: None.
    Application scenarios: Mobile applications, large websites, picture sharing, popular audio and video

    Infrequent Access

    OSS instances characterized by relatively low storage costs and real time access
    Features: Applicable to service scenarios that support real time, infrequent data access
    Persistence: 99.999999999%
    Minimum storage period: 30 days
    Application scenarios: Mobile devices, backup of applications and enterprise data, monitoring data, online storage applications


    OSS instances that support long-term archive data storage at the lowest unit price
    Features: Applicable to service scenarios that are subject to data recovery wait time and have requirements on data storage period
    Persistence: 99.999999999%
    Minimum storage period: 60 days
    Application scenarios: Long-term archive data storage, medical imaging, video materials

  • Flexible and easy to use

    Provides easy access to OSS on the Internet by using RESTful APIs and multi-language SDKs.

    Provides the console, clients, and data migration tools to easily upload data to and download data from the cloud, and to easily retrieve and manage data.

    Allows you to easily configure expired data deletion or store the data in cost-effective archives.

    Allows the elastic expansion of the storage capacity and processing capability, to store an unlimited number of files.

  • Powerful Data Processing Capabilities

    Supports jpg, png, bmp, gif, webp, tiff, and many other file formats, along with features like format conversion, thumbnails, cropping, watermarks, scaling and other operations.

    Offers high-quality, high-speed parallel audio/video transcoding capabilities so you can easily prepare audio/video files for any device.

    Accelerates content delivery with OSS as origin site and ensures stability with no retrieve from the origin bandwidth restrictions.

    Supports Hadoop and enables Hive bulk processing or Impala and Spark interactive query and analysis.

    Supports seamless integration with Alibaba Cloud Elastic MapReduce (EMR), Data Lake Analytics, MaxCompute, BatchCompute, and Machine Learning Platform for AI (PAI), and works as an integrated data lake to complete offline computing tasks, interactive query, machine learning-based training, and BatchCompute applications such as DNA sequencing and film rendering.

  • High reliability and powerful security measures

    Provides multiple backups to effectively mitigate the impact of multiple hardware failures.

    Provides fully redundant infrastructure to eliminate the possibility of single points of failure (SPOFs) and guarantee high availability.

    Supports cross-region replication and disaster recovery solutions to enable remote disaster recovery.

    Supports Resource Access Management (RAM) users for resource access management, Security Token Service (STS) for temporary access authorizations, and fine-grained access control based on buckets, directories, and objects.

    Supports server-side and client-side encryption, anti-leech, and HTTPS-based protection, to secure your data.

  • Cost-effective storage

    Provides classified storage to minimize the Total Cost of Ownership (TCO).

    Provides the Pay-As-You-Go and subscription billing methods, and flexible metering and billing, to reduce the cost of storage.

    Uses the transmission bandwidth offered by multiple Internet service providers (ISPs). Uploading data to OSS is free.

    Supports fully-managed storage, so you do not need to pay for additional operation and maintenance.

Common Scenarios

  • Separation of dynamic resources from static resources
  • Multimedia data storage
  • Cloud data ETL
  • Multiple storage types
  • Cross-region disaster recovery
Separation of dynamic resources from static resources

Separation of dynamic resources from static resources for websites or applications

OSS is the cost-effective and elastically scalable storage service.

You can manage all static website content such as images, scripts, and videos, and store this content in the same way that you store folders in OSS, and access nearby resources using Border Gateway Protocol (BGP) or Content Delivery Network (CDN) acceleration. In this way, OSS can effectively reduce the load of ECS instances and improve user experience.


  • High performance

    Prevents overloading on instances that is caused by increasing service data volumes.

  • Cost-effective

    Supports the elastic scaling of resources and the Pay-As-You-Go billing method.

Integrations and Configurations

Multimedia data storage

Multimedia data storage

Alibaba Cloud OSS provides mass data storage options for multiple types of content, such as images, audio, videos, logs and other files.

OSS supports multiple types of terminals, Web applications, and mobile apps, and allows them to write data to or read data from OSS directly, and to write to both streams and files. OSS secures data with a reliability of 99.999999999%, and enables seamless access to CDN and Media Transcoding Service (MTS).


  • Flexible access

    Provides easy access by using standard RESTful APIs, multiple SDKs, clients, and the OSS console.

  • Security and reliability

    Multi-level security measures ensure data reliability.

  • Cost-effective

    Supports the elastic scaling of resources and flexible billing methods.


Cloud data ETL

Cloud data ETL

You can extract more value from your data, because data processing is simplified with Alibaba Cloud OSS.

You can use MTS, image processing service, BatchCompute, and MaxCompute to fully extract the value of your data that is stored to OSS.


  • Rich media processing

    Provides image processing, user-defined functions, and other value-added services, and works with MTS to provide video transcoding and frame capturing.

  • Storage and computing

    Uses Alibaba Cloud data computing services to extract the value from your data.

Integrations and Configurations

Multiple storage types

Multiple storage types

Classified storage substantially reduces costs.

You can store all types of data in OSS, such as popular data including images, audio, and videos, less popular data including backups, and archived data. According to the specified lifecycle, OSS transfers data to the corresponding storage type at a lower price, and optimizes the storage cost.


  • Standard storage

    Features high performance, high reliability, and high availability.

  • Less popular data storage

    Features cost-effective and real-time access

  • Archives

    Suitable for long-term archival storage at the lowest price.


Cross-region disaster recovery

Cross-region disaster recovery

OSS supports cross-region replication.

Therefore, you can synchronize data to a specified region in real time for remote disaster recovery. In this way, OSS secures important data from the impact of extreme disasters and ensures service stability.


  • Remote disaster recovery

    Maintains your service with data that has been replicated to the remote standby data center.

  • Data compliance

    Replicates data between remote OSS data centers to meet data compliance requirements.

Integrations and Configurations

Upgraded Support For You

1 on 1 Presale Consultation, 24/7 Technical Support, Faster Response, and More Tickets.

1 on 1 Presale Consultation

Consulting by experienced cloud experts. Learn More

24/7 Technical Support

Extended service time from 10 hours 5 days a week to 24/7. Learn More

6 Free Tickets per Quarter

The number of free tickets doubled from 3 to 6 per quarter. Learn More

Faster Response

Shorten after-sale response time from 36 hours to 18 hours. Learn More